Construction business
Construction weekly backlog staffing capacity
Compare planned weekly project labor with supplied available productive person-hours, including a starting ready-work backlog.
Your inputs
Complete the fields for your selected method. Zero means intentionally zero, not unknown. Currency selection labels amounts; it does not convert exchange rates.
How this calculation works
end-week backlog = max(0, starting backlog + planned weekly demand - available productive person-hours)
For residential or commercial company costing. Use supplied job records, measured labor and quoted total expenses. No material takeoff, shopping list, supplier sourcing, code interpretation, engineering design or legal entitlement is provided. Enter productive person-hours after leave, travel and administration, not simply crew clock hours. Planned demand and ready-work status are supplied assumptions. This does not establish safe staffing, a critical-path schedule or compliance with working-time rules.
What information do I need?
Use records for the same job, equipment or accounting period. Only the fields for your selected entry method are required. An unknown amount is not zero.
Input definitions and where to find them
- Ready work already waiting at start (person-hours): Ready-work plan and externally supplied staff availability calendar. Owner records or explicit assumption; no account connection or maintained rate tables required.
- Chronological planned work weeks: Ready-work plan and externally supplied staff availability calendar. Owner records or explicit assumption; no account connection or maintained rate tables required.
- Week label: Ready-work plan and externally supplied staff availability calendar. Owner records or explicit assumption; no account connection or maintained rate tables required.
- Additional planned work becoming ready that week (person-hours): Ready-work plan and externally supplied staff availability calendar. Owner records or explicit assumption; no account connection or maintained rate tables required.
- Available productive crew person-hours that week (person-hours): Ready-work plan and externally supplied staff availability calendar. Owner records or explicit assumption; no account connection or maintained rate tables required.
Use the Where to find this value controls beside the inputs for available work-it-out helpers. Estimates remain your assumptions; a helper does not verify the source figures.
Worked example
Example amounts use US dollars (USD).
Example answer: Ready backlog after entered weeks is 40.00 person-hours for the illustrative inputs below.
Example inputs
- Ready work already waiting at start: 40.00 person-hours
- Chronological planned work weeks
- Week label: Week 1
- Additional planned work becoming ready that week: 200.00 person-hours
- Available productive crew person-hours that week: 240.00 person-hours
- Week label: Week 2
- Additional planned work becoming ready that week: 280.00 person-hours
- Available productive crew person-hours that week: 240.00 person-hours
- Ready backlog after entered weeks
- 40.00 person-hours
- Largest period-end ready backlog including opening
- 40.00 person-hours
- Unused capacity does not carry forward. All ready work is assumed interchangeable across the entered crews; skills, task dependencies and bottlenecks are not scheduled.
These illustrative values are not recommended rates or industry averages. Replace every example input with your own figures.
Use the result well
Compare planned workload to stated calendar.
Keep inputs on the same scope and time basis. Calculations retain precision internally; displayed values generally round to two decimal places, with extra precision for very small values and whole-unit rounding where required. Economic comparisons describe your supplied assumptions and do not guarantee future results.
This tool provides business arithmetic. It does not approve engineering designs, establish legal or tax treatment, select equipment or certify safe operating conditions.